#include <stdlib.h>
#include <sys/types.h>
#include <stdio.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <string.h>
#include <unistd.h>

int main()
{
	int sfp,nfp;
	struct sockaddr_in s_add,c_add;
	//int sin_size;
	socklen_t sin_size;
	unsigned short portnum=0x8888;

	printf("Hello,welcome to my server !\r\n");
	sfp = socket(PF_INET, SOCK_STREAM, 0);
	if(-1 == sfp) {
		printf("socket fail ! \r\n");
		return -1;
	}
	printf("socket ok !\r\n");


	bzero(&s_add,sizeof(struct sockaddr_in));
	s_add.sin_family=AF_INET;
	s_add.sin_addr.s_addr=htonl(INADDR_ANY);
	s_add.sin_port=htons(portnum);

	if(-1 == bind(sfp,(struct sockaddr *)(&s_add), sizeof(struct sockaddr))) {
		printf("bind fail !\r\n");
		return -1;
	}
	printf("bind ok !\r\n");

	if(-1 == listen(sfp,5)) {
		printf("listen fail !\r\n");
		return -1;
	}
	printf("listen ok\r\n");

	while(1) {
		sin_size = sizeof(struct sockaddr_in);

		nfp = accept(sfp, (struct sockaddr *)(&c_add), &sin_size);
		if(-1 == nfp) {
			printf("accept fail !\r\n");
			return -1;
		}
		printf("accept ok!\r\nServer start get connect from %#x : %#x\r\n",ntohl(c_add.sin_addr.s_addr),ntohs(c_add.sin_port));


		if(-1 == write(nfp,"hello,welcome to my server \r\n",32)) {
			printf("write fail!\r\n");
			return -1;
		}
		printf("write ok!\r\n");
		close(nfp);

	}
	close(sfp);
	return 0;
}
